What powers 
jresports.co.jp?
Last seen Oct 2026 · 8 technologies across 7 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Google Font API
since May 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Security
HSTS
since Mar 2024
Tag managers
Google Tag Manager
since Jan 2019
Video players
YouTube
since Sep 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 75% phone
- 25% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.60 / 10 · ranked #816,247 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 18.4 MB · 77 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on JEIS-NET JR East Information Systems Company (157.71.195.35)
- DNS: jregroup.ne.jp
- Email: Cisco Secure Email
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 1,078,077, 4 hosts
- Verified with: Box
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.jresports.co.jp | 8 |
| secure.jresports.co.jp | 1 |
Full technology history →
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Recent changes
- dropped Amazon SES Jun 2026
- dropped Amazon Web Services Jun 2026
- dropped Marketo Apr 2026